/write 1.x compatibility API
The /write 1.x compatibility endpoint writes data to InfluxDB Cloud and InfluxDB OSS Cloud
using patterns from the InfluxDB 1.x /write API endpoint.
Use the POST request method to write line protocol
to the /write endpoint.
POST http://localhost:8086/write
If you have an existing bucket that doesn’t follow the database/retention-policy naming convention,
you must manually create a database and retention policy mapping
to write data to that bucket with the /write compatibility API.
Authentication
Use one of the following authentication schemes:
- token authentication
- basic authentication with username and password
- query string authentication with username and password
For more information, see Authentication.
Request body
Include your line protocol in the request body.
Binary encode the line protocol to prevent unintended formatting.
The examples below use the curl --data-binary flag to binary
encode the line protocol.
Query string parameters
u
(Optional) The InfluxDB Cloud username to authenticate the request. See query string authentication.
p
(Optional) The InfluxDB Cloud API token to authenticate the request. See query string authentication.
db
(Required) The database to write data to. This is mapped to an InfluxDB bucket. See Database and retention policy mapping.
rp
The retention policy to write data to. This is mapped to an InfluxDB bucket. See Database and retention policy mapping.
precision
The precision of Unix timestamps in the line protocol.
Default is nanosconds (ns).
The following precisions are available:
ns- nanosecondsuorµ- microsecondsms- millisecondss- secondsm- minutesh- hours
Write examples
- Write data using basic authentication
- Write data to a non-default retention policy
- Write multiple lines of line protocol
- Write data with millisecond Unix timestamps
- Use curl to write data from a file
Write data using basic authentication
Write data using token authentication
curl --request POST http://localhost:8086/write?db=DATABASE_NAME \
--header "Authorization: Token API_TOKEN" \
--data-binary "measurement,host=host1 field1=2i,field2=2.0 1577836800000000000"
Write data to a non-default retention policy
curl --request POST "http://localhost:8086/write?db=DATABASE_NAME&rp=RETENTION_POLICY" \
--header "Authorization: Token API_TOKEN" \
--data-binary "measurement,host=host1 field1=2i,field2=2.0 1577836800000000000"
Write multiple lines of line protocol
curl --request POST http://localhost:8086/write?db=DATABASE_NAME \
--header "Authorization: Token API_TOKEN" \
--data-binary "measurement,host=host1 field1=2i,field2=2.0 1577836800000000000
measurement,host=host2 field1=14i,field2=12.7 1577836800000000000
measurement,host=host3 field1=5i,field2=6.8 1577836800000000000"
Write data with millisecond Unix timestamps
curl --request POST "http://localhost:8086/write?db=DATABASE_NAME&precision=ms" \
--header "Authorization: Token API_TOKEN" \
--data-binary "measurement,host=host1 field1=2i,field2=2.0 1577836800000"
Use curl to write data from a file
curl --request POST http://localhost:8086/write?db=DATABASE_NAME \
--header "Authorization: Token API_TOKEN" \
--data-binary @path/to/line-protocol.txt
Replace the following:
DATABASE_NAMEandRETENTION_POLICY: the database and retention policy mapping (DBRP) for the InfluxDB v2 bucket that you want to write to- }
exampleuser@influxdata.com: the email address that you signed up with API_TOKEN: your InfluxDB API token
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