<html><body> <style> body, h1, h2, h3, div, span, p, pre, a { margin: 0; padding: 0; border: 0; font-weight: inherit; font-style: inherit; font-size: 100%; font-family: inherit; vertical-align: baseline; } body { font-size: 13px; padding: 1em; } h1 { font-size: 26px; margin-bottom: 1em; } h2 { font-size: 24px; margin-bottom: 1em; } h3 { font-size: 20px; margin-bottom: 1em; margin-top: 1em; } pre, code { line-height: 1.5; font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console', monospace; } pre { margin-top: 0.5em; } h1, h2, h3, p { font-family: Arial, sans serif; } h1, h2, h3 { border-bottom: solid #CCC 1px; } .toc_element { margin-top: 0.5em; } .firstline { margin-left: 2 em; } .method { margin-top: 1em; border: solid 1px #CCC; padding: 1em; background: #EEE; } .details { font-weight: bold; font-size: 14px; } </style> <h1><a href="tracing_v2.html">Google Tracing API</a> . <a href="tracing_v2.projects.html">projects</a> . <a href="tracing_v2.projects.traces.html">traces</a> . <a href="tracing_v2.projects.traces.spans.html">spans</a></h1> <h2>Instance Methods</h2> <p class="toc_element"> <code><a href="#create">create(name, body, x__xgafv=None)</a></code></p> <p class="firstline">Creates a new Span.</p> <h3>Method Details</h3> <div class="method"> <code class="details" id="create">create(name, body, x__xgafv=None)</code> <pre>Creates a new Span. Args: name: string, The resource name of Span in the format `projects/PROJECT_ID/traces/TRACE_ID/spans/SPAN_ID`. `TRACE_ID` is a unique identifier for a trace within a project and is a base16-encoded, case-insensitive string and is required to be 32 char long. `SPAN_ID` is a unique identifier for a span within a trace. It is a base 16-encoded, case-insensitive string of a 8-bytes array and is required to be 16 char long. (required) body: object, The request body. (required) The object takes the form of: { # A span represents a single operation within a trace. Spans can be nested # to form a trace tree. Often, a trace contains a root span that # describes the end-to-end latency and, optionally, one or more subspans for # its sub-operations. (A trace could alternatively contain multiple root spans, # or none at all.) Spans do not need to be contiguous. There may be gaps # and/or overlaps between spans in a trace. "status": { # The `Status` type defines a logical error model that is suitable for different # An optional final status for this span. # programming environments, including REST APIs and RPC APIs. It is used by # [gRPC](https://github.com/grpc). The error model is designed to be: # # - Simple to use and understand for most users # - Flexible enough to meet unexpected needs # # # Overview # # The `Status` message contains three pieces of data: error code, error message, # and error details. The error code should be an enum value of # google.rpc.Code, but it may accept additional error codes if needed. The # error message should be a developer-facing English message that helps # developers *understand* and *resolve* the error. If a localized user-facing # error message is needed, put the localized message in the error details or # localize it in the client. The optional error details may contain arbitrary # information about the error. There is a predefined set of error detail types # in the package `google.rpc` that can be used for common error conditions. # # # Language mapping # # The `Status` message is the logical representation of the error model, but it # is not necessarily the actual wire format. When the `Status` message is # exposed in different client libraries and different wire protocols, it can be # mapped differently. For example, it will likely be mapped to some exceptions # in Java, but more likely mapped to some error codes in C. # # # Other uses # # The error model and the `Status` message can be used in a variety of # environments, either with or without APIs, to provide a # consistent developer experience across different environments. # # Example uses of this error model include: # # - Partial errors. If a service needs to return partial errors to the client, # it may embed the `Status` in the normal response to indicate the partial # errors. # # - Workflow errors. A typical workflow has multiple steps. Each step may # have a `Status` message for error reporting. # # - Batch operations. If a client uses batch request and batch response, the # `Status` message should be used directly inside batch response, one for # each error sub-response. # # - Asynchronous operations. If an API call embeds asynchronous operation # results in its response, the status of those operations should be # represented directly using the `Status` message. # # - Logging. If some API errors are stored in logs, the message `Status` could # be used directly after any stripping needed for security/privacy reasons. "message": "A String", # A developer-facing error message, which should be in English. Any # user-facing error message should be localized and sent in the # google.rpc.Status.details field, or localized by the client. "code": 42, # The status code, which should be an enum value of google.rpc.Code. "details": [ # A list of messages that carry the error details. There will be a # common set of message types for APIs to use. { "a_key": "", # Properties of the object. Contains field @type with type URL. }, ], }, "stackTrace": { # StackTrace collected in a trace. # Stack trace captured at the start of the span. "stackTraceHashId": "A String", # The hash ID is used to conserve network bandwidth for duplicate # stack traces within a single trace. # # Often multiple spans will have identical stack traces. # The first occurrence of a stack trace should contain both the # `stackFrame` content and a value in `stackTraceHashId`. # # Subsequent spans within the same request can refer # to that stack trace by only setting `stackTraceHashId`. "stackFrames": { # Represents collection of StackFrames that can be truncated. # Stack frames in this stack trace. A maximum of 128 frames are allowed. "frame": [ # Stack frames in this stack trace. { # Represents a single stack frame in a stack trace. "columnNumber": "A String", # Column number is important in JavaScript (anonymous functions). # May not be available in some languages. "functionName": { # Represents a string value that might be truncated. # The fully-qualified name that uniquely identifies this function or # method (up to 1024 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "fileName": { # Represents a string value that might be truncated. # The filename of the file containing this frame (up to 256 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "originalFunctionName": { # Represents a string value that might be truncated. # Used when the function name is # [mangled](http://www.avabodh.com/cxxin/namemangling.html). May be # fully-qualified (up to 1024 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "loadModule": { # Binary module. # Binary module the code is loaded from. "buildId": { # Represents a string value that might be truncated. # Build_id is a unique identifier for the module, usually a hash of its # contents (up to 128 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "module": { # Represents a string value that might be truncated. # E.g. main binary, kernel modules, and dynamic libraries # such as libc.so, sharedlib.so (up to 256 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, }, "lineNumber": "A String", # Line number of the frame. "sourceVersion": { # Represents a string value that might be truncated. # The version of the deployed source code (up to 128 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, }, ], "droppedFramesCount": 42, # The number of dropped stack frames after the maximum size was enforced. # If 0 then no frames were dropped. }, }, "displayName": { # Represents a string value that might be truncated. # Description of the operation in the span. It is sanitized and displayed in # the Stackdriver Trace tool in the # {% dynamic print site_values.console_name %}. # The display_name may be a method name or some other per-call site # name. For the same executable and the same call point, a best practice is # to use a consistent operation name, which makes it easier to correlate # cross-trace spans. # The maximum length for the display_name is 128 bytes. "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "name": "A String", # The resource name of Span in the format # `projects/PROJECT_ID/traces/TRACE_ID/spans/SPAN_ID`. # `TRACE_ID` is a unique identifier for a trace within a project and is a # base16-encoded, case-insensitive string and is required to be 32 char long. # `SPAN_ID` is a unique identifier for a span within a trace. It is a # base 16-encoded, case-insensitive string of a 8-bytes array and is required # to be 16 char long. "links": { # A collection of links, which are references from this span to a span # A maximum of 128 links are allowed per Span. # in the same or different trace. "droppedLinksCount": 42, # The number of dropped links after the maximum size was enforced. If # 0 then no links were dropped. "link": [ # A collection of links. { # A pointer from this span to another span in a different `Trace` within # the same service project or within a different service project. Used # (for example) in batching operations, where a single batch handler # processes multiple requests from different traces or when receives a # request from a different service project. "spanId": "A String", # `SPAN_ID` is a unique identifier for a span within a trace. It is a # base16-encoded, case-insensitive string of a 8-bytes array and is # required to be 16 char long. "traceId": "A String", # `TRACE_ID` is a unique identifier for a trace within a project. It is # a base16-encoded, case-insensitive string of a 16-bytes array and is # required to be 32 char long. "type": "A String", # The relationship of the current span relative to the linked span. }, ], }, "parentSpanId": "A String", # ID of parent span which is a base 16-encoded, case-insensitive string of # a 8-bytes array and is required to be 16 char long. If this is a root span, # the value must be empty. "startTime": "A String", # Start time of the span. # On the client side, this is the local machine clock time at which the span # execution was started; on the server # side, this is the time at which the server application handler started # running. "spanId": "A String", # Unique identifier for a span within a trace. It is a base 16-encoded, # case-insensitive string of a 8-bytes array and is required. "attributes": { # Attributes of a span with a key:value format. # A set of attributes on the span. A maximum of 32 attributes are allowed per # Span. "droppedAttributesCount": 42, # The number of dropped attributes after the maximum size was enforced. If # 0 then no attributes were dropped. "attributeMap": { # The maximum key length is 128 bytes (attributes are dropped if the # key size is larger than the maximum allowed). The value can be a string # (up to 256 bytes), integer, or boolean (true/false). Some common pair # examples: # # "/instance_id": "my-instance" # "/zone": "us-central1-a" # "/grpc/peer_address": "ip:port" (dns, etc.) # "/grpc/deadline": "Duration" # "/http/user_agent" # "/http/request_bytes": 300 # "/http/response_bytes": 1200 # "/http/url": google.com/apis # "abc.com/myattribute": true "a_key": { # The allowed types for the value side of an attribute key:value pair. "stringValue": { # Represents a string value that might be truncated. # A string value (up to 256 bytes). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "intValue": "A String", # An integer value. "boolValue": True or False, # A boolean value. }, }, }, "timeEvents": { # A collection of `TimeEvent`s. A `TimeEvent` is a time-stamped annotation # A maximum of 32 annotations and 128 network events are allowed per Span. # on the span, consisting of either user-supplied key:value pairs, or # details of an RPC message sent/received on the network. "timeEvent": [ # A collection of `TimeEvent`s. { # A time-stamped annotation in the Span. "networkEvent": { # An event describing an RPC message sent/received on the network. A # An event describing an RPC message sent/received on the network. # maximum of 128 network events are allowed per Span. "messageSize": "A String", # The number of bytes sent or received. "messageId": "A String", # An identifier for the message, which must be unique in this span. "type": "A String", # Type of NetworkEvent. Indicates whether the RPC message was sent or # received. "time": "A String", # If available, this is the kernel time: # # * For sent messages, this is the time at which the first bit was sent. # * For received messages, this is the time at which the last bit was # received. }, "annotation": { # Text annotation with a set of attributes. A maximum of 32 annotations are # One or more key:value pairs. # allowed per Span. "attributes": { # Attributes of a span with a key:value format. # A set of attributes on the annotation. A maximum of 4 attributes are # allowed per Annotation. "droppedAttributesCount": 42, # The number of dropped attributes after the maximum size was enforced. If # 0 then no attributes were dropped. "attributeMap": { # The maximum key length is 128 bytes (attributes are dropped if the # key size is larger than the maximum allowed). The value can be a string # (up to 256 bytes), integer, or boolean (true/false). Some common pair # examples: # # "/instance_id": "my-instance" # "/zone": "us-central1-a" # "/grpc/peer_address": "ip:port" (dns, etc.) # "/grpc/deadline": "Duration" # "/http/user_agent" # "/http/request_bytes": 300 # "/http/response_bytes": 1200 # "/http/url": google.com/apis # "abc.com/myattribute": true "a_key": { # The allowed types for the value side of an attribute key:value pair. "stringValue": { # Represents a string value that might be truncated. # A string value (up to 256 bytes). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "intValue": "A String", # An integer value. "boolValue": True or False, # A boolean value. }, }, }, "description": { # Represents a string value that might be truncated. # A user-supplied message describing the event. The maximum length for # the description is 256 bytes. "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, }, "time": "A String", # The timestamp indicating the time the event occurred. }, ], "droppedNetworkEventsCount": 42, # The number of dropped network events after the maximum size was enforced. # If 0 then no annotations were dropped. "droppedAnnotationsCount": 42, # The number of dropped annotations after the maximum size was enforced. If # 0 then no annotations were dropped. }, "endTime": "A String", # End time of the span. # On the client side, this is the local machine clock time at which the span # execution was ended; on the server # side, this is the time at which the server application handler stopped # running. } x__xgafv: string, V1 error format. Allowed values 1 - v1 error format 2 - v2 error format Returns: An object of the form: { # A span represents a single operation within a trace. Spans can be nested # to form a trace tree. Often, a trace contains a root span that # describes the end-to-end latency and, optionally, one or more subspans for # its sub-operations. (A trace could alternatively contain multiple root spans, # or none at all.) Spans do not need to be contiguous. There may be gaps # and/or overlaps between spans in a trace. "status": { # The `Status` type defines a logical error model that is suitable for different # An optional final status for this span. # programming environments, including REST APIs and RPC APIs. It is used by # [gRPC](https://github.com/grpc). The error model is designed to be: # # - Simple to use and understand for most users # - Flexible enough to meet unexpected needs # # # Overview # # The `Status` message contains three pieces of data: error code, error message, # and error details. The error code should be an enum value of # google.rpc.Code, but it may accept additional error codes if needed. The # error message should be a developer-facing English message that helps # developers *understand* and *resolve* the error. If a localized user-facing # error message is needed, put the localized message in the error details or # localize it in the client. The optional error details may contain arbitrary # information about the error. There is a predefined set of error detail types # in the package `google.rpc` that can be used for common error conditions. # # # Language mapping # # The `Status` message is the logical representation of the error model, but it # is not necessarily the actual wire format. When the `Status` message is # exposed in different client libraries and different wire protocols, it can be # mapped differently. For example, it will likely be mapped to some exceptions # in Java, but more likely mapped to some error codes in C. # # # Other uses # # The error model and the `Status` message can be used in a variety of # environments, either with or without APIs, to provide a # consistent developer experience across different environments. # # Example uses of this error model include: # # - Partial errors. If a service needs to return partial errors to the client, # it may embed the `Status` in the normal response to indicate the partial # errors. # # - Workflow errors. A typical workflow has multiple steps. Each step may # have a `Status` message for error reporting. # # - Batch operations. If a client uses batch request and batch response, the # `Status` message should be used directly inside batch response, one for # each error sub-response. # # - Asynchronous operations. If an API call embeds asynchronous operation # results in its response, the status of those operations should be # represented directly using the `Status` message. # # - Logging. If some API errors are stored in logs, the message `Status` could # be used directly after any stripping needed for security/privacy reasons. "message": "A String", # A developer-facing error message, which should be in English. Any # user-facing error message should be localized and sent in the # google.rpc.Status.details field, or localized by the client. "code": 42, # The status code, which should be an enum value of google.rpc.Code. "details": [ # A list of messages that carry the error details. There will be a # common set of message types for APIs to use. { "a_key": "", # Properties of the object. Contains field @type with type URL. }, ], }, "stackTrace": { # StackTrace collected in a trace. # Stack trace captured at the start of the span. "stackTraceHashId": "A String", # The hash ID is used to conserve network bandwidth for duplicate # stack traces within a single trace. # # Often multiple spans will have identical stack traces. # The first occurrence of a stack trace should contain both the # `stackFrame` content and a value in `stackTraceHashId`. # # Subsequent spans within the same request can refer # to that stack trace by only setting `stackTraceHashId`. "stackFrames": { # Represents collection of StackFrames that can be truncated. # Stack frames in this stack trace. A maximum of 128 frames are allowed. "frame": [ # Stack frames in this stack trace. { # Represents a single stack frame in a stack trace. "columnNumber": "A String", # Column number is important in JavaScript (anonymous functions). # May not be available in some languages. "functionName": { # Represents a string value that might be truncated. # The fully-qualified name that uniquely identifies this function or # method (up to 1024 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "fileName": { # Represents a string value that might be truncated. # The filename of the file containing this frame (up to 256 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "originalFunctionName": { # Represents a string value that might be truncated. # Used when the function name is # [mangled](http://www.avabodh.com/cxxin/namemangling.html). May be # fully-qualified (up to 1024 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "loadModule": { # Binary module. # Binary module the code is loaded from. "buildId": { # Represents a string value that might be truncated. # Build_id is a unique identifier for the module, usually a hash of its # contents (up to 128 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "module": { # Represents a string value that might be truncated. # E.g. main binary, kernel modules, and dynamic libraries # such as libc.so, sharedlib.so (up to 256 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, }, "lineNumber": "A String", # Line number of the frame. "sourceVersion": { # Represents a string value that might be truncated. # The version of the deployed source code (up to 128 characters). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, }, ], "droppedFramesCount": 42, # The number of dropped stack frames after the maximum size was enforced. # If 0 then no frames were dropped. }, }, "displayName": { # Represents a string value that might be truncated. # Description of the operation in the span. It is sanitized and displayed in # the Stackdriver Trace tool in the # {% dynamic print site_values.console_name %}. # The display_name may be a method name or some other per-call site # name. For the same executable and the same call point, a best practice is # to use a consistent operation name, which makes it easier to correlate # cross-trace spans. # The maximum length for the display_name is 128 bytes. "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "name": "A String", # The resource name of Span in the format # `projects/PROJECT_ID/traces/TRACE_ID/spans/SPAN_ID`. # `TRACE_ID` is a unique identifier for a trace within a project and is a # base16-encoded, case-insensitive string and is required to be 32 char long. # `SPAN_ID` is a unique identifier for a span within a trace. It is a # base 16-encoded, case-insensitive string of a 8-bytes array and is required # to be 16 char long. "links": { # A collection of links, which are references from this span to a span # A maximum of 128 links are allowed per Span. # in the same or different trace. "droppedLinksCount": 42, # The number of dropped links after the maximum size was enforced. If # 0 then no links were dropped. "link": [ # A collection of links. { # A pointer from this span to another span in a different `Trace` within # the same service project or within a different service project. Used # (for example) in batching operations, where a single batch handler # processes multiple requests from different traces or when receives a # request from a different service project. "spanId": "A String", # `SPAN_ID` is a unique identifier for a span within a trace. It is a # base16-encoded, case-insensitive string of a 8-bytes array and is # required to be 16 char long. "traceId": "A String", # `TRACE_ID` is a unique identifier for a trace within a project. It is # a base16-encoded, case-insensitive string of a 16-bytes array and is # required to be 32 char long. "type": "A String", # The relationship of the current span relative to the linked span. }, ], }, "parentSpanId": "A String", # ID of parent span which is a base 16-encoded, case-insensitive string of # a 8-bytes array and is required to be 16 char long. If this is a root span, # the value must be empty. "startTime": "A String", # Start time of the span. # On the client side, this is the local machine clock time at which the span # execution was started; on the server # side, this is the time at which the server application handler started # running. "spanId": "A String", # Unique identifier for a span within a trace. It is a base 16-encoded, # case-insensitive string of a 8-bytes array and is required. "attributes": { # Attributes of a span with a key:value format. # A set of attributes on the span. A maximum of 32 attributes are allowed per # Span. "droppedAttributesCount": 42, # The number of dropped attributes after the maximum size was enforced. If # 0 then no attributes were dropped. "attributeMap": { # The maximum key length is 128 bytes (attributes are dropped if the # key size is larger than the maximum allowed). The value can be a string # (up to 256 bytes), integer, or boolean (true/false). Some common pair # examples: # # "/instance_id": "my-instance" # "/zone": "us-central1-a" # "/grpc/peer_address": "ip:port" (dns, etc.) # "/grpc/deadline": "Duration" # "/http/user_agent" # "/http/request_bytes": 300 # "/http/response_bytes": 1200 # "/http/url": google.com/apis # "abc.com/myattribute": true "a_key": { # The allowed types for the value side of an attribute key:value pair. "stringValue": { # Represents a string value that might be truncated. # A string value (up to 256 bytes). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "intValue": "A String", # An integer value. "boolValue": True or False, # A boolean value. }, }, }, "timeEvents": { # A collection of `TimeEvent`s. A `TimeEvent` is a time-stamped annotation # A maximum of 32 annotations and 128 network events are allowed per Span. # on the span, consisting of either user-supplied key:value pairs, or # details of an RPC message sent/received on the network. "timeEvent": [ # A collection of `TimeEvent`s. { # A time-stamped annotation in the Span. "networkEvent": { # An event describing an RPC message sent/received on the network. A # An event describing an RPC message sent/received on the network. # maximum of 128 network events are allowed per Span. "messageSize": "A String", # The number of bytes sent or received. "messageId": "A String", # An identifier for the message, which must be unique in this span. "type": "A String", # Type of NetworkEvent. Indicates whether the RPC message was sent or # received. "time": "A String", # If available, this is the kernel time: # # * For sent messages, this is the time at which the first bit was sent. # * For received messages, this is the time at which the last bit was # received. }, "annotation": { # Text annotation with a set of attributes. A maximum of 32 annotations are # One or more key:value pairs. # allowed per Span. "attributes": { # Attributes of a span with a key:value format. # A set of attributes on the annotation. A maximum of 4 attributes are # allowed per Annotation. "droppedAttributesCount": 42, # The number of dropped attributes after the maximum size was enforced. If # 0 then no attributes were dropped. "attributeMap": { # The maximum key length is 128 bytes (attributes are dropped if the # key size is larger than the maximum allowed). The value can be a string # (up to 256 bytes), integer, or boolean (true/false). Some common pair # examples: # # "/instance_id": "my-instance" # "/zone": "us-central1-a" # "/grpc/peer_address": "ip:port" (dns, etc.) # "/grpc/deadline": "Duration" # "/http/user_agent" # "/http/request_bytes": 300 # "/http/response_bytes": 1200 # "/http/url": google.com/apis # "abc.com/myattribute": true "a_key": { # The allowed types for the value side of an attribute key:value pair. "stringValue": { # Represents a string value that might be truncated. # A string value (up to 256 bytes). "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, "intValue": "A String", # An integer value. "boolValue": True or False, # A boolean value. }, }, }, "description": { # Represents a string value that might be truncated. # A user-supplied message describing the event. The maximum length for # the description is 256 bytes. "truncatedCharacterCount": 42, # The number of characters truncated from the original string value. If 0 it # means that the string value was not truncated. "value": "A String", # The truncated string value. E.g. for a string attribute this may have up to # 256 bytes. }, }, "time": "A String", # The timestamp indicating the time the event occurred. }, ], "droppedNetworkEventsCount": 42, # The number of dropped network events after the maximum size was enforced. # If 0 then no annotations were dropped. "droppedAnnotationsCount": 42, # The number of dropped annotations after the maximum size was enforced. If # 0 then no annotations were dropped. }, "endTime": "A String", # End time of the span. # On the client side, this is the local machine clock time at which the span # execution was ended; on the server # side, this is the time at which the server application handler stopped # running. }</pre> </div> </body></html>