Any examples of loading to BigQuery using a POST request and Java client library? -

does have examples of creating new insert job bigquery using both:

• the bigquery java client library
• creating load job post request documented here: https://developers.google.com/bigquery/loading-data-into-bigquery#loaddatapostrequest

you need call bigquery.jobs().insert(...) method.

i don't know have done yet should have authenticated client api @ least like:

bigquery = new bigquery.builder(http_transport, json_factory, credentials)                 .setapplicationname("...").build(); 

that's simplified version of insertrows method wrote using google-http-client library java , bigquery-api (you should check dataset exists, validate ids etc.):

public long insertrows(string projectid,                         string datasetid,                         string tableid,                         inputstream schema,                        abstractinputstreamcontent data) {     try {          // defining table fields         objectmapper mapper = new objectmapper();         list<tablefieldschema> schemafields = mapper.readvalue(schema, new typereference<list<tablefieldschema>>(){});         tableschema tableschema = new tableschema().setfields(schemafields);          // table reference         tablereference tablereference = new tablereference()                 .setprojectid(projectid)                 .setdatasetid(datasetid)                 .settableid(tableid);          // load job configuration         jobconfigurationload loadconfig = new jobconfigurationload()                 .setdestinationtable(tablereference)                 .setschema(tableschema)                 // data in json format (could csv)                 .setsourceformat("newline_delimited_json")                 // table created if not exists                 .setcreatedisposition("create_if_needed")                 // append data (not override data)                 .setwritedisposition("write_append");         // if data coming google cloud storage         //.setsourceuris(...);          // load job         job loadjob = new job()                 .setjobreference(                         new jobreference()                                 .setjobid(joiner.on("-").join("insert", projectid, datasetid,                                         tableid, datetime.now().tostring("dd-mm-yyyy_hh-mm-ss-sss")))                                 .setprojectid(projectid))                 .setconfiguration(new jobconfiguration().setload(loadconfig));         // job execution         job createtablejob = bigquery.jobs().insert(projectid, loadjob, data).execute();         // if loading data google cloud storage         //createtablejob = bigquery.jobs().insert(projectid, loadjob).execute();          string jobid = createtablejob.getjobreference().getjobid();         // wait job completion         createtablejob = waitforjob(projectid, createtablejob);         long rowcount = createtablejob != null ? createtablejob.getstatistics().getload().getoutputrows() : 0l;         log.info("{} rows inserted in table '{}' (dataset: '{}', project: '{}')", rowcount, tableid, datasetid, projectid);         return rowcount;     }     catch (ioexception e) { throw throwables.propagate(e); } } 

i don't know format of data if using files, can add function like:

 public long insertrows(string projectid, string datasetid, string tableid, file schema, file data) {     try {         return insertrows(projectid, datasetid, tableid, new fileinputstream(schema),                 new filecontent(mediatype.octet_stream.tostring(), data));     }     catch (filenotfoundexception e) { throw throwables.propagate(e); } }